package main

import "fmt"

//pair
//https://www.bilibili.com/video/BV1gf4y1r79E?p=22
func main() {
	var a string
	a = "ace"
	//pair<type:String, value :"ace">
	var allType interface{}
	allType = a
	fmt.Println(a, allType)

	s, _ := allType.(string)
	fmt.Println(s)

}
